Absorption and luminescence of the surface states in ZnS nanoparticles

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	Absorption and luminescence of the surface states in ZnS nanoparticles
	Chen W ; Wang ZG ; Lin ZJ ; Lin LY
刊名	journal of applied physics
	1997
卷号	82 期号:6 页码:3111-3115
关键词	SEMICONDUCTOR NANOCRYSTALLITES CDS PARTICLES PHOTOCHEMISTRY ELECTRON PHOTOLUMINESCENCE COLLOIDS CLUSTERS GLASSES SPECTRA TRAPS
ISSN号	0021-8979
通讯作者	chen w chinese acad sciinst semicondlab semicond mat scipob 912beijing 100083peoples r china.
中文摘要	a broad absorption band around 500 nm is observed in zns nanoparticles. the absorption becomes more intensive and shifts to the blue as the particle size is decreased. the absorption energy is lower than the band gap of the particles and is considered to be caused by the surface states. this assignment is supported by the results of the fluorescence and of the thermoluminescence of the surface states. both the absorption and the fluorescence reveal that the surface states are size dependent. the glow peak of the semiconductor particles is not varied as much upon decreasing size, indicating the trap depth of the surface states is not sensitive to the particle size. considering these results, a new model on the size dependence of the surface states is proposed, which may explain our observations reasonably. (c) 1997 american institute of physics.
学科主题	半导体材料
收录类别	SCI
语种	英语
公开日期	2010-11-17
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/15143]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Chen W,Wang ZG,Lin ZJ,et al. Absorption and luminescence of the surface states in ZnS nanoparticles[J]. journal of applied physics,1997,82(6):3111-3115.
APA	Chen W,Wang ZG,Lin ZJ,&Lin LY.(1997).Absorption and luminescence of the surface states in ZnS nanoparticles.journal of applied physics,82(6),3111-3115.
MLA	Chen W,et al."Absorption and luminescence of the surface states in ZnS nanoparticles".journal of applied physics 82.6(1997):3111-3115.